$OpenBSD: patch-src_classes_window_overview_vala,v 1.1 2017/04/13 07:10:45 jasper Exp $

Fix build with Vala 0.36

--- src/classes/window/overview.vala.orig	Wed Apr 12 19:50:04 2017
+++ src/classes/window/overview.vala	Wed Apr 12 19:50:09 2017
@@ -299,7 +299,7 @@ namespace pdfpc.Window {
             this.n_slides = newn;
             var iter = Gtk.TreeIter();
             this.slides.get_iter_from_string(out iter, @"$(this.current_slide)");
-            this.slides.remove(iter);
+            this.slides.remove(ref iter);
             if (this.current_slide >= this.n_slides) {
                 this.current_slide = this.n_slides - 1;
             }
